package com.metrictracker.ws;

import java.io.IOException;
import java.sql.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.logging.Logger;

import org.restlet.data.Status;
import org.restlet.representation.Representation;
import org.restlet.resource.Get;
import org.restlet.resource.Post;
import org.restlet.resource.ResourceException;

import com.googlecode.objectify.Objectify;
import com.googlecode.objectify.ObjectifyService;
import com.metrictracker.model.Metric;
import com.metrictracker.model.MetricGoal;
import com.metrictracker.model.MetricGoalDao;
import com.metrictracker.util.ExceptionManager;


/**
 * Resource which has only one representation.
 * 
 */
public class ManageMetricGoal extends MetricTrackerServerResource {
	
	private static final Logger log = Logger.getLogger(ManageMetricGoal.class.getName());
	
    @Get
    public String rep() {
    
    	Metric metric = getMetric();
    	
    	MetricGoalDao dao = new MetricGoalDao();
    	Iterator<MetricGoal> metricGoals = dao.listByProperty("metricKey", metric.getKey()).iterator();
    	
		StringBuffer sb = new StringBuffer("");
		sb.append("Metric Name: " + metric.getName());
		sb.append(System.getProperty("line.separator"));
		sb.append("Goal Name\t");
		sb.append("Goal Type\t");
		sb.append("Effective\t\t\t");
		sb.append("Expiration\t\t\t");
		sb.append("Goal");
		sb.append(System.getProperty("line.separator"));
		while (metricGoals.hasNext()) {
			 MetricGoal metricGoal = metricGoals.next();
			 sb.append(metricGoal.getName());
			 sb.append("\t");
			 sb.append(metricGoal.getGoalType());
			 sb.append("\t");
			 sb.append(metricGoal.getEffectivityDate());
			 sb.append("\t");
			 sb.append(metricGoal.getExpirationDate());
			 sb.append("\t");
			 sb.append(metricGoal.getGoal());
			 sb.append(System.getProperty("line.separator"));
		}
		 
        return sb.toString();
    }
    
    @Post("form:xml|json")
    public void acceptRepresentation(Representation entity) throws ResourceException { 
    	
    	Objectify ofy = ObjectifyService.begin();
    	Metric metric = getMetric();

		try {
			HashMap<String, String> parameters = getParameters(entity);
	
	        MetricGoal metricGoal = new MetricGoal();
	        metricGoal.setMetric(metric);
	        metricGoal.setGoalType(parameters.get("goalType"));
	        metricGoal.setGoal(Float.valueOf(parameters.get("goal")));
	        metricGoal.setEffectivityDate(Date.valueOf(parameters.get("effectivityDate")));
	        metricGoal.setExpirationDate(Date.valueOf(parameters.get("expirationDate")));
	        metricGoal.setName(parameters.get("goalName"));
	        
	        ofy.put(metricGoal);
	    	getResponse().setStatus(Status.SUCCESS_CREATED);  
	        	
		} catch (IOException e) {
			ExceptionManager.logException(log, e);
			getResponse().setStatus(Status.SERVER_ERROR_INTERNAL);
			return;
		}
    }
}

